Positive Behavioural Interventions and Supports (PBIS) is a framework used in many schools to encourage positive behaviour through structured expectations, reinforcement systems, and consistent responses. The model focuses on teaching behavioural expectations and recognising students for meeting them. While PBIS is intended to create supportive environments, critics note that some implementations rely heavily on reward systems or compliance frameworks that may not address underlying needs such as trauma, disability, or unmet learning supports.